Bob Gale admitted that Biff was inspired by the recently re-elected American president.
Update : TMC continues its cycle Back to the futureThis evening. Tune in at 9:25 p.m. on the channel to (re)watch number 2.
News from November 9, 2016: In the parallel and nightmarish 1985 of Back to the Future 2Marty finds himself facing a Biff Tannen who took advantage of the sports almanac to become extremely rich and reign supreme over Hill Valley. He lives in a 27-story casino, is unspeakably vulgar, forced his wife to have a breast job even though he was blithely cheating on her, and killed Marty's father. In short, a total nightmare. And the co-writer Bob Gale assured last year that he was largely inspired by Donald Trump to create this alternative Biff. At the time of the film's release, in 1989, the man who had just become President of the United States was still a simple, totally bling eccentric billionaire but already well known for his escapades.
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“Of course we thought of him when making the film, are you kidding?” Gale blurted out Daily Beastat the time of the 30th anniversary of the release of the first Back to the future. “Watch the scene where he confronts Biff in his office. There's a large portrait of Biff hanging on the wall behind him, and at one point he's standing in exactly the same way as he was. Yeah, it's him“.
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In Back to the Future 2this Biff Tannen / Donald Trump lives in his own tower (well), uses his money to influence local politics and lets crime proliferate as long as it serves his own interests. He is also misogynistic and violent. Obviously, the replay of the scene is much less funny now that Trump rose to the highest office.
Look at the passage in question:
Still no Back to the Future 4 for Robert Zemeckis